.practice {
    width: 1125px;
    margin: auto;
    box-sizing: border-box;
    padding: 71px 46px 0;

    .top {
        display: flex;
        margin-bottom: 41px;
        justify-content: space-between;

        .btn {
            width: 496px;
            height: 120px;
            background: #2E57FF;
            text-align: center;
            line-height: 120px;
            color: #fff;
        }

        .btn2 {
            background: #ff9800;
        }
    }

    .title {
        height: 137px;
        line-height: 138px;
        font-size: 38px;
        color: #666666;
    }

    .list {
        width: 100%;
        overflow: hidden;
        li {
            float: left;
            width: 320px;
            height: 80px;
            background: #F0F0F0;
            text-align: center;
            line-height: 80px;
            color: #333333;
            font-size: 42px;
            margin-right: 32px;
            margin-bottom: 33px;
            &.active{
                background: #2E57FF;
                color: #fff;
            }
            &:nth-of-type(3n){margin-right: 0;}
        }
    }
}